A Canadian working as an intern at NATO headquarters was detained over alleged espionage for Beijing, sources say. A Canadian intern working at NATO has been arrested on suspicion of spying for China, according to sources familiar with the matter. What we know so farThe suspect is a Canadian national who held an intern position at NATO. NATO has identified Beijing as presenting “systemic challenges” to Euro-Atlantic security, a notable escalation from the relatively muted language used just a few years ago. Past espionage incidents involving NATO and allied organizations have typically resulted in internal security reviews, tightened vetting procedures, and sometimes wholesale changes to how personnel access classified systems.